Network Manager

QUESS SINGAPORE; Singapore; On-site; SGD 80,000 - 110,000; Full time

Job summary

A leading technology service provider in Singapore is seeking an experienced Network Manager to oversee the design, implementation, and operation of their data center and ISP network infrastructure. The role demands a deep understanding of network architecture and the ability to lead a team while collaborating with cross-functional departments to enhance network performance and reliability. Candidates should possess a relevant degree and considerable hands-on experience in network operations, especially with ISP environments. A mix of strategic planning and technical expertise is essential for success in this role.

Qualifications

• 5+ years in network design and operations.
• 3+ years in ISP, IX, Cloud Connect, or Internet Gateway environments.
• Hands-on experience with major networking tools.

Responsibilities

• Lead design, implementation, and operation of the data center.
• Oversee customer network provisioning and support.
• Manage ISP/BGP network operations and routing.

Skills

Network architecture design

BGP Operations

Project management

Team leadership

Problem-solving

Education

Bachelor's degree in IT or Computer Engineering

Tools

Cisco

Juniper

Arista

Job description

NetworkManager – DataCenter & ISP Infrastructure

Our client is expanding their network and datacenter capabilities and are seeking an experienced NetworkManager to lead the design, implementation, and operation of our world‑class data center and ISP network infrastructure.

About the Role

As the NetworkManager, you’ll take ownership of network architecture across structured cabling, routing & switching, and ISP/BGP operations. This role combines strategic planning with hands‑on engineering work, ensuring the network consistently delivers top‑tier performance, reliability, and availability.

You will lead a team of Network Engineers while collaborating closely with cross‑functional teams to support customer needs, new technologies, and future infrastructure growth.

Key Responsibilities

Customer Provisioning & Technical Support

• Oversee provisioning of customer network orders and cross‑connect circuits.
• Perform end‑to‑end testing and maintain accurate diagrams, records, and service documentation.

Network Planning & Architecture

• Assess current and future capacity and performance requirements.
• Design scalable, redundant, high‑availability network architectures.
• Develop structured cabling systems (Cat6A, OM4, OS2) and produce detailed schematics and capacity plans.

Cabling Infrastructure Management

• Lead installation, termination, certification, and labeling for copper and fiber systems.
• Maintain proper cable management, inventory, pathways, and documentation.

ISP & BGP Network Operations

• Design and manage BGP architecture for upstream transit and downstream customers.
• Manage AS numbers, IP allocations, IX peering, and routing security (RPKI, ROA, MANRS).
• Optimize routing for performance, redundancy, and cost efficiency.

Network Operations & Security

• Deploy and maintain routers, switches, firewalls, load balancers, and network appliances.
• Ensure best‑practice configurations and LAN/WAN integration.
• Implement firewalls, ACLs, segmentation, IDS/IPS, encryption, and ISO‑aligned controls.

Monitoring, Performance & Capacity Planning

• Monitor network utilization, latency, and faults using tools like MRTG, PRTG, SolarWinds, etc.
• Forecast growth trends and recommend upgrades to support future scalability.

Team Leadership & Collaboration

• Lead and mentor a team of network engineers.
• Collaborate across operations, systems, facilities, and security teams.
• Drive incident troubleshooting and participate in 24/7 escalation as needed.

Governance, Vendor & Compliance

• Maintain all network documentation (SOPs/MOPs/EOPs, diagrams, and IP records).
• Manage vendor relationships, budgets, and contract negotiations.
• Ensure compliance with regulatory and industry frameworks such as ISO27001, PCI‑DSS, OSPAR, IMDA, TIA‑942, and BICSI.

What We’re Looking For

Education & Experience

• Bachelor’s degree in IT, Computer Engineering, or related field.
• 5+ years in network design/operations with 3+ years in ISP, IX, Cloud Connect, or Internet Gateway environments.
• Hands‑on experience with Cisco, Juniper, or Arista in data‑center or carrier‑grade networks.
• Familiarity with SDN, NFV, VxLAN, EVPN, and network automation.

Technical Expertise

• Strong knowledge of BGP, MPLS, OSPF, IS‑IS, IPv4/IPv6, TCP/IP, DNS, DHCP.
• Experience with monitoring tools and IP resource management (APNIC, RANK).
• Understanding of routing security, traffic engineering, and data‑center networking.

Core Competencies

• Strong leadership, planning, and problem‑solving abilities.
• Excellent communication skills.
• Resilient, adaptable, and capable of managing complex challenges.
• Preferred certifications: CCNP/CCIE or JNCIP/JNCIE‑SP.